.card-colorful {
    background-color: #f0f7ff;
    color: #333;
    font-family: "Segoe UI", sans-serif;
    box-shadow: 0 6px 18px rgba(0, 100, 255, 0.2);
    border: 1px solid #646cff;
    border-left: 5px solid #646cff;
    position: relative;
    overflow: hidden;
  }
  .card-colorful img {
    max-width: 95%;
    height: auto;
    background-color: rgba(100, 149, 237, 0.2);
    padding: 8px;
    border-radius: 4px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transform: rotate(-5deg);
  }
  
  .card-colorful h1,
  .card-colorful h2,
  .card-colorful h3 {
    color: #646cff;
    border-bottom: 2px solid rgba(100, 149, 237, 0.3);
    padding-bottom: 4px;
  }
  
  .card-colorful blockquote {
    border-left: 4px solid #646cff;
    background-color: rgba(100, 149, 237, 0.1);
    padding: 8px 16px;
    margin: 16px 0;
    color: #555;
  }
  
  .card-colorful code {
    background-color: rgba(100, 149, 237, 0.1);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: monospace;
  }